Want R33 Gtr Sized Brakes On Your R32 Cheap?

[salad]

Hi guys, I'm currently talking to a machinist who's willing to knock me up 5 pairs of caliper extension brackets for R32 GTS-ts.

They will mean that you will be able to run 324mm rotors (R33 GTR size) but use your standard calipers which have almost the same pad area as the Brembos. So good budget upgrade if you get yourself some rotors (like in the RDA group buy). The rotors there are worth around $300 delivered if I remember correctly.

Now I'm just waiting for the exact dimensions off a bloke that has the UAS ones and then I can give the machinist the drawings and he'll make em for me. Material will be aerospace grade 7075 T651 aluminium (higher yield stress than 4130 Chro-Moly steel, but 35% of the weight). Will have new high tensile bolts and stainless washers supplied with it. Then get yourself some rotors and you have big brakes for pretty damn cheap.

I still have to get exact sizes so I know how much material I need to buy, but I don't think they would be over $150 a pair.

UAS sell the kit for ~$900 with DBA4000 slotted rotors, so if this is right, it should come to under $500 for the same thing but RDA rotors instead (some say better than the DBAs for track work).

I'll be running these on my track car and I think Cubes is keen on a pair too (has also said I can post this thread here), so that leaves 3 other people that can get some big brakes for cheap.

So put your hand up if you're keen on some more stopping power.

Just a note, I'm fairly sure that these AREN'T street legal and I'm not sure if you'd be able to make them street legal. So this is aimed at people that track their R32s

Cheers

Showza

Edited August 5, 2008 by salad

[RBLUV]

interested pending price mate

[Cubes]

Salad... No doubt these would also suit R33's.

[D_Stirls]

Salad... No doubt these would also suit R33's.

The R33's will ahve a different offset as they have 296mm rotor standard, and the R32's had a 280mm rotor. They will work but the design will be slightly different.

If the quote comes back being more than $150 give my brother a call Growly Custom Machining as he was going to make up some designs for the same thing and he was looking at them being around $150.

[salad]

No worries will do. I am fairly sure these will come in a decent amount under $150, but have just put that price up as a worst case scenario.

The R33 ones need a different design as the spacing between the holes radially needs to be 14mm instead of 22mm, so it leaves bugger all material around the bolt holes, where the stresses are highest anyway. The UAS ones are sort of shaped so that the bolt holes aren't in a line, but moved over a little bit. So these ones wont work with R33, unless of course people want their pads hanging over the rotor by 8mm

Edited August 5, 2008 by salad

[Cubes]

Dstirls.. oh yeah.. lol

Ahh well good for 340mm rotors. If they exist.

[salad]

There's 343mm rotors out there, think they're for expensive kits though...

[Madaz]

ah spewn i was thinking in the shower that the calliper bolt patern would of been the same and shiz and since the mounting point is the same your just changing the radius of the rotor should of worked

[SIR-032]

Is this the bracket you are looking to make up????

If so im keen cost em up let us know dude

SIR

[salad]

I'm fairly sure they're the UAS ones yeah? But yeah, they're going to be very similar to those, except will be much cheaper once you source the rotors from the RDA group buy. So yeah, definitely under $500 for the kit isntead of $900 like UAS sell

[SIR-032]

Yes thats the Unique Auto Sports one

grab the bracket from your mate who has one and let us know if its the same and how much you can copy them for?

Im keen for sure , this bracket can also be used for R32 GTR owners who do not want to use this bracket which is a comprimise

this bracket requires cutting of the stone gaurd

but with the bracket in my previous post it can be used with 324mm rotors this bracket and a swap from gtr calipers to Z32 calipers same but shorter mounting legs so i should all fit up perfect

Cheers

SIR

[=premo=]

I've done the conversion on my R32 gts-t but haven't been able to drive it hard yet. I'll let everyone know how it goes once I get around my current problem.

Salad - just make sure you get the offset right, the ones I got had the wrong offset so I had to get Growly Custom Machining to shave them down so the caliper was central with the rotor.

Edited August 9, 2008 by =premo=

[salad]

Yeah, these ones will be copies of ones that have already worked, the UAS ones. Hey, are yours like the first ones posted or the 2nd ones?

[SIR-032]

SO How are those caliper brackets coming along Salad

should be done my now its been a couple of weeks so far where are you at???

UAS are selling them around $300 plus del i have not called them yet though

PM me if poss or post up the latest on these brackets cheers

SIR

[salad]

Hey mate, sorry, but progress hasn't been great. The bloke that I was supposed to be getting the measurements off of is out of the country... So I can either measure stuff up myself, make sure they fit and then get those ones made, or wait longer and get the actual dimensions of the UAS ones and exactly copy the design.

I've done the stress analysis, and I'm fairly happy with it, except that I'm not sure what the temps will usually get up to, and the 7075 ally is very bad with heat, once it's over 90deg or so, the stuff gets a whole lot weaker, but I'm not sure how hot it would be touching the lugs on the caliper.

I want to get this all done quickly, but I also don't want to get something made that breaks on me and others.

[SIR-032]

Yep thats a fair call SALAS we are talking about brakes in the end so clever option get it right first up

UAS wont really seperate the adaptors for me so were asking$400 pair so i would not by just the bracket so

i just bought a wicked set off BREMBOS for my GTR TOUGH

full kit and some killa BREMBO pads nice a whole lot more but a whole lot more mracking

so my R32 GTR brake setup will for sale soon complete set up to suit the GTS-Ts etc

CHeers SALAD

SIR

[MYRB30]

90 degrees hey?? Um sorry be be a fun stopper but the caliper does get hot, remember that brake fluid absorbs water, and can boil in the caliper...thats over 100degress....

Besides the hub itself will get bloody hot from the wheel bearings..IMHO.I would be looking at using another material...

[salad]

Yes the caliper itself gets quite hot, but how much of that heat goes into the caliper's lugs isntead of being disipated into the fluid, atmosphere, etc.

Ally does work as that's what UAS use, and many people have used those without issue.

The bearings can get hot, but I still don't think it's a huge problem when you're looking at the caliper flanges.

In the end, it's up to you if you want them or not, but it will be a copy of a design that has been proved to work (when I finally get the exact dimensions).

If you're really paranoid about it though, I can arrange for a different material to be used, such as 4130 steel but cost will be higher.

Edited August 23, 2008 by salad